Navy Awards L3Harris $876M NGJ-LB Modification for Prototypes and Flight Testing

The U.S. Navy awarded L3Harris Technologies an undefinitized contract modification valued at more than $876 million for work on the Next Generation Jammer Low Band (NGJ-LB) program. The effort covers prototype hardware, specialized manufacturing equipment, and flight-test support. NGJ-LB is intended to disrupt low-frequency radar and communications threats, positioning the work within the Navy’s broader electronic warfare and airborne mission-systems requirements. The stated award value is substantial, but the modification is not yet a fully definitized contract with final pricing and delivery terms established.

Undefinitized contracting allows work to proceed while the government and contractor continue negotiating the final contractual terms. In this case, that means the headline value should not be treated as a complete picture of finalized costs, delivery milestones, or the government’s eventual obligations. The source information does not provide a final schedule, negotiated price, or detailed performance milestones. Those terms remain unsettled, so contractors tracking the program should distinguish the announced value from terms that have yet to be definitively agreed.

For L3Harris and its supporting suppliers, the modification creates both a near-term execution opportunity and a requirement to manage uncertainty. Prototype development, specialized equipment, and flight-test support can involve interconnected engineering, production, and test activities. Changes to negotiated pricing or delivery terms may affect work sequencing, resource commitments, and supplier coordination. Companies considering downstream support should monitor official program updates and avoid assuming that the announced modification alone confirms a specific subcontract opportunity, scope, or timeline.

The procurement signal is therefore twofold: the Navy is advancing NGJ-LB prototype and test work through a major contract action, while the acquisition remains in a negotiating phase. Definitization, schedule clarification, and subsequent information about supplier needs will be important indicators for firms seeking to participate in the program. Contractors with relevant manufacturing, test, engineering, or electronic-warfare capabilities can use those updates to assess potential requirements and execution risks, while keeping near-term planning flexible until terms are confirmed.

• Awarding agency: The U.S. Navy issued the contract modification to L3Harris Technologies.
• Announced value: The undefinitized modification is valued at more than $876 million.
• Program: The work supports the Next Generation Jammer Low Band (NGJ-LB) effort.
• Scope: The modification includes prototype hardware, specialized manufacturing equipment, and flight-test support.
• Operational purpose: NGJ-LB is intended to disrupt low-frequency radar and communications threats.
• Contract status: The award is undefinitized; final pricing and delivery terms remain under negotiation.
• Supplier implication: Supporting companies should account for unresolved terms when planning resources, commitments, and work sequencing.
• What to monitor: Definitization, schedule updates, and information about downstream supplier needs may clarify future support requirements and execution risks.